/*
 * 注册处理
 */
package com.itcc.servlet;

import com.itcc.dao.MD5Util;
import com.itcc.dao.SendMail;
import com.itcc.dao.UserDao;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Icer
 */
public class Reg extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
            request.setCharacterEncoding("utf-8");
            UserDao userDao = new UserDao();
            SendMail sendMail = new SendMail();
            String username = request.getParameter("username").trim();
            String password = userDao.genRandomNum(8);
            String currpass = MD5Util.MD5(password);
            String email = request.getParameter("email");
            if(username.equals("")||username==null){
                response.sendRedirect("login.html");
            }
            if(userDao.isExist_username(username) == false){
                if(userDao.isExist_email(email) == false){
                    boolean flag = userDao.insert(username,currpass, email);
                    if(flag){
                        sendMail.sendMail(username, email, password);
                        response.sendRedirect("welcome.jsp?tag=ok");
                    }else{
                        response.sendRedirect("welcome.jsp?tag=error");
                    }
                }else{
                    response.sendRedirect("welcome.jsp?tag=error");
                }
            }else{
                response.sendRedirect("welcome.jsp?tag=error");
            }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
